Milk production and the efficiency of dairy cow breeding are significantly influenced by reproductive factors. The purpose of our research was to examine the relationships between selected milk production and reproductive parameters. We evaluated 659 dairy cows, including 444 pureb...
PERFORMANCE OF CROSSBRED DAIRY CATTLE AT MILITARY DAIRY FARMS IN PAKISTAN The first litter is frequently aborted, or reabsorbed, and the female will rebreed with the new male. Chapter 11: Rats and mice None failed to rebreed. We did find that fall-born ewe lambs usually would not breed th...
The significance of the Polish Red breed in cattle breeding in southern Poland At present, Polish Red cattle is only bred in southern Poland. Its important dairy traits include the high fat, protein and dry matter content of milk and ... M Gadek - 《Instytut Zootecnniki Dieletyn Informacyj...
The present study aimed to assess and measure the effects of breed, genetic merit for production traits, and feeding systems (FS) on the ability of dairy cows to ensure pregnancy through its components (fertilization, embryonic losses, recalving). An experiment was conducted over 9 yr on Norman...
Holstein Association USA is the world's largest dairy cattle breed organization, offering information services to all dairy producers. The Holstein Association offers dairy cattle identification, genetic e
dairy friend recently mentioned to me that “it is not the sprint but the marathon that dairy cows need to be bred for. There needs to be much more emphasis placed on reducing the costs of animal turnover. Also, on capturing extensive facts on daily cow events and body functions an...
A male calf born to a dairy cow is the wrong breed to profitably be raised for beef. His fate is much worse.(出生在乳制品作坊的公牛犊就是一个错误的品种,养着只能制成牛肉卖钱。它的命运更加坎坷。) Just because a bird does not breed one year, it does not follow that it will fail th...
1. Thirty-eight first-calf heifers in two equal groups were subjected for complete lactations to a rigid control of the duration of milking to either 4 or ... FH Dodd,AS Foot,E Henriques,... - 《Journal of Dairy Research》 被引量: 105发表: 1950年 Cow's milk allergy related pediatri...
5、A male calf born to a dairy cow is the wrongbreedto profitably be raised for beef. His fate is much worse.(出生在乳制品作坊的公牛犊就是一个错误的品种,养着只能制成牛肉卖钱。它的命运更加坎坷。) 6、Just because a bird does notbreedone year, it does not follow that it will fail th...